@book{knuth:art,
    author    = {Knuth, Donald Ervin},
    title     = {Computer Programming as an Art},
    volume    = {3},
    publisher = {Addison-Wesley},
    year      = {1973},
    address   = {Reading (Massachusetts)}
}


@manual{pantieri:arte, 
	author    = {Pantieri, Lorenzo and Gordini, Tommaso},
	title     = {L'arte di scrivere con \LaTeX}, 
	year      = {2011},
	url       = {http://www.lorenzopantieri.net/LaTeX_files/ArteLaTeX.pdf}
}